ERGONOMIC DESIGN & LIGHTWEIGHT ? Super lightweight and the stabilizer design according to ear geometry to ensure a secure, comfortable fit for any ear. Anti-sweating material keeps the headphones fully function even when dripping with sweat; offers sweat-resistant protection while running, biking, training, jogging, hiking, exercising with them in your ears.

QUICK CHARGE WITH UNIQUE CHARGING BOX ? Portable charging case is ultra-lightweight with large capacity Lithium batteries, which can support 4 times fully charging for the wireless earbuds and let you enjoy more than 3 hours continuous music or talking time after each single charge. Only takes 1.5 hours to fully charged. Never worry about low battery when you are out all day. Easy to carry, NO Loss.

100% SATISFIED AFTER-SALES GUARANTEE ? We offer Free lifetime technical support and 18-month worry-free Guarantee for hassle Free Replacement or Money Back. If you are not satisfied with your purchase for any reason, Please feel free to contact us.

Product Description:Q & A : Q 1: How to pairing those two headsets? Step 1.For initial use, press and hold the button for 3 seconds of either earbud and release after the LED flashes between Red and Blue. (Voice Notice: Power on - Paring) Step 2. Open the mobile phone bluetooth and search "Air Headset", then connect it. Step 3. Pairing the earphone with your mobile phone, the product will be in standby status after pairing completed, Blue LED flashes 5 seconds each time. (Voice Notice: Connected) What you get 2 x TWS Bluetooth Stereo Earphones 1 x Headset Charging Case 1 x Micro USB Charge Cable 1 x User Manual Please Note: 1.For incoming call,Press function button once to answer;Press function button twice to reject(When at the calling mode,only master earbud has sound,This safety feature allows you to hear the traffic While driving ) 2.If only one earbud has sound at music mode, please try to recover the default setting. 3.When you receive this package and use the Earbuds at the first time, the working time may not be very long, because we test them before sending them out, That costs some battery. Please don't worry. Charge them and they will work as expected. Features Bluetooth Version: V4.2+CSR Working Distance: within 33ft/10M Music Playtime: 3 hours Calling Time: 5 hours Standby Time: about 20hours Battery Specs: li-polymer 3.7V, 46mAh Charging Time: about 1.5H Pairing Name: Air Headset Auto Power-Off technology: Power off when no connectivity for 5 minutes.：